Arch Replacement During Type A Aortic Dissection Repair – UROP Spring Symposium 2021

Arch Replacement During Type A Aortic Dissection Repair

Marc Titsworth

Marc Titsworth

Pronouns: He/Him

Research Mentor(s): Bo Yang, Assistant professor
Research Mentor School/College/Department: Cardiac surgery, Michigan Medicine
Presentation Date: Thursday, April 22, 2021
Session: Session 6 (4pm-4:50pm)
Breakout Room: Room 14
Presenter: 1

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Prior to and following aortic surgery, surgeons periodically track the diameter of the aorta to follow growth and determine whether surgical re-intervention is required. By the use of imaging studies such as CT and TEE/TTE, we can examine the data from preoperative and postoperative imaging. This can be used to follow growth, which is a risk factor for reoperation. The different management techniques of managing the aortic arch during acute type A aortic dissection (ATAAD) treatment involves different extents of replacement of the arch. For this project, aortic dissection patients surgically treated at Michigan Medicine in the past year will be added to an online database. Information pertaining to the aortic dissection repair including preoperative, intraoperative, and postoperative variables such as age, pre-existing comorbidities, and postoperative stroke will be collected in the database. Through a retrospective chart review and analysis of this REDcap aortic dissection database, aortic dissection patients will be separated into four groups of varying extent of aortic arch replacement during ATAAD repair: (1) the hemiarch (proximal repair beyond the innominate artery without any arch vessels involved) (2) zone 1 (innominate and left common carotid artery) (3) zone 2 (right common carotid and subclavian arteries) and (4) zone 3 (also known as total arch, includes the region distal to the subclavian artery). A statistical analysis comparing baseline characteristics (gender, median age, hypertension, coronary artery disease, and diabetes) using chi-square and fisher tests will be performed to determine whether these are significantly different between groups.

Authors: Marc Titsworth, Aroma Naeem, Bo Yang
Research Method: Clinical Research

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